I am using wordpress / woocommerce for my online e-Commerce store. I understand that I am using the default email settings and there were no SMTP set up. The system was able to send emails out to all kinds of domain.
Currently I am using cloudflare to load my pages faster. I am not sure if our MX records or DNS records are set up correctly. I am also using UpCloud server right now to host my website. I am not sure if there are any configuration that we need to set up correctly as well.
I do not want to use any SMTP settings because all these while I was using default wordpress / woocommerce settings only.
Could you help me to check all the set up that could be affecting this.